November 2019
Beginner to intermediate
408 pages
9h 29m
Korean
Content preview from 밑바닥부터 시작하는 비트코인
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
9
장
블록
245
른쪽으로 밀어서 버리고 맨 왼쪽
3
개의 비트만 남습니다.
0b001
은 파이썬에서
2
진수를 표
현하는 방식입니다.
➋
&
연산자는 비트별로 수행하는
AND
논리연산자입니다. 여기서는 오른쪽
4
개의 비트를 먼
저 밀어서 버리고 맨 오른쪽 비트가
1
인지 확인합니다.
➌
BIP0141
은 두 번째 비트 (비트
1
)를 사용하므로 오른쪽으로 한 비트를 밀어버립니다.
연습문제
9.6
Block
클래스의
bip9
메서드를 작성하시오.
연습문제
9.7
Block
클래스의
bip91
메서드를 작성하시오.
연습문제
9.8
Block
클래스의
bip141
메서드를 작성하시오.
9.2.2
이전 블록 해시값
모든 블록은 바로 이전 블록의 해시값을 갖고 있습니다. 중복된 해시값은 없기 때문에 이 해시
값으로 이전 블록을 특정할 수 있습니다. 그래서 이런 데이터 구조를 블록체인이라고 부릅니
다. 모든 블록은 결국 최초 블록까지 거슬러 연결됩니다. 이전 블록 해시값은 앞에 많은
0
자릿
수가 있으며 그 이유는 뒤에서 자세히 설명합니다.
9.2.3
머클루트
머클루트
Merkle
root
는 블록 내 순서에 따라 나열된 모든 트랜잭션을
32
바이트 해시값으로 변환한
값입니다.
11
장에서 머클루트가 단순 지급 검증 (
SPV
)에서 어떻게 쓰이는지 살펴보겠습니다.
그리고 어떤 블록에 특정 트랜잭션이 포함되었는지를 알아내기 위해 풀 노드의 블록체인 데이
터와 함께 머클루트가 어떻게 사용되는지도 알아보겠습니다.
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and much more.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.